Electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book



FIG. 1 is a front elevation view of an electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book showing my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a perspective view thereof; and,

FIG. 8 is a perspective view thereof with front cover closed. 

The ornamental design for an electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book, as shown and described. 